Drainage-system tester.



G. L. KELLY.

DRAINAGE SYSTEM TESTER.

APPLICATION FILED 020.16, 1914.

1,159,950. Patented Nov. 9, 1915.

2 SHEETS-SHEET l.

COLUMBIA PLANOGRAPH CO.,WASHINDTON,D..

G. L. KELLY.

DRAINAGE SYSTEM TESTER.

APPLICATION FILED DEC. 16, 1914.

1 ,1 59,950. Patented Nov. 9, 1915.

2 SHEETS-SHEET 2.

FFEQ.

enonen L. KELLY, on NEW YORK, N. Y.

nnAiNAGE-s'YsTEi/r TESTER.

Specification of Letters Patent.

Patented Nov. 9, 151E115.

Application filed December 16, 1914. I Serial No. 877,529.

To all'wiwm it may concern:

Be it known that I, GEORGE L. KELLY, a citizen of the United States,-r'esiding at New York, in the county of Bronx and State of New York,have invented certain new and useful Improvements in Drainage-SystemTesters, of which the following is a specification.

My invention relates to drainage system testers.

The primary object of my invention is to provide a drainage systemtester so constructed that the plumbing in a building may be tested insections, thus saving con siderable time and expense.

Another object of my invention is to provide a drainage system tester soconstructed that pipes may be tested underground or in places whereaccess to the same is very diflicult, and for testing the pipes thetester may be left in its position without impairing the operation ofthe system.

A still further object of my invention resides in the provision of adrainage system tester which is so constructed that it may bepermanently made a fitting in the plumbing of a building. and when soused brings about many additional advantages to the drainage systemwhich would otherwise be lost.

With these and other objects in view my invention resides in suchdetails in construction, combination and arrangements of parts as areillustrated in the accompanying drawings, described in the specificationand claimed.

In the accompanying drawings wherein is illustrated the preferredembodiment of my invention; Figure 1 is a sectional side view of thesame, showing the parts assembled; Fig. 2 is a sectional side view ofFig. 1 with the various parts other than the pipe fittin s, not shown;Fig. 3 is a sectional side view of a modified form of my invention; Fig.4 is a sectional view of Fig. 2 with the various parts other than thepipe fittings, not shown; and Fig. 5 is a view of the valve used in myinvention.

Like characters of reference designate like or similar parts throughoutthe several views.

In order to clearly illustrate the functions of my invention I haveshown in the drawings pipe fittings of two difierent kinds one of whichis shown in Figs. 1 and 2 as that of the bent plate character while thepipe fitting shown in Figs. 3 and a is that of the vertical orlongitudinal straight pipe fitting.

Referring particularly to Figs. 1 and 2 the numeral 10designates theinlet opening. Midway or this opening is a downwardly bent substantiallyU-shaped portion which has an'enlarged portion 8, formed in the pipeadjacent the inlet opening. Upon the lower extremity of the enlargedportion is formed a beveled valve seat 5, adapted to receive the beveledvalve or stoppr 6 to which is secured a suitable ring 7 to raise thevalve from its seat when desired.

I desire to call particular attention to the construction of my valvestopper. As is clearly shown in Fig. 3 the valve is composed of ametallic body portion slightly less in diameter than the valve seat andadapted to be encircled by a rubber ring or gasket 8 in order to providea water tight connection. Upon the lower extremity of the body portionan annular flange is formed to limit the downward movement of thegasket. I have found it desirable to form the upper surface or the topof the valve concave to insure a perfectly tight seating of the sameupon application of pressure from above. In vertical alinemeiit with thevalve and seat is a clean-out opening 12 which has provided. thereinscrew threads adapted to receive screw threads upon a brass square shankplug. This shank plug is provided with an opening adapted to receive apipe connection by which the water is drained after testing the system.This connection is provided with a suitable valve manually operated andhas its opposite end extending within the clean-out recess adjacent theoutlet opening of the trap. As is usual the inlet, outlet and clean-outopenings are provided with recessed annular shoulders 15 such as aregenerally used in pipe fittings of this character.

The forms of my invention illustrated in Figs. 3 and 4c are adapted tobe used on a straight pipe svstem and are provided with inlet and outletopenings 10 and 11 respectively. Adjacent the outlet opening is formedthe valve seat 5 adapted to receive the valve 6 which has securedthereto a ring 7 and is provided with an annular shoulder 9 to maintain,in the proper position, the gasket or washer 8. In this form of myinvention, the inlet opening is in vertical alinement with the valveandseat whereas in the above described modification the clean a It may beused as aclean out incase-of a out opening is in alinement with thevalveand seat.

Midway the inlet and outlet openings is formed a clean out opening-12which has screw threadedly attached thereto athreaded brass square shankplug 13 which is 'pro vided with an opening for the reception of a drainpipe 14: whereby the'liquid is drawn from the pipe after havingcompleted the the drain is opened and the fluid emptied from theinterior of the plpes, whereupon the drain pipe is removed and a stopperscrewed in the clean out opening. The op? eration of both of my forms ofmy invention is identical.

I Particular stress is laidupon thefact that my fitting is a permanentaddition to a drainage system a'ndserves a dualpurpose.

stoppage in the-line at any time. It also does away with the use ofsystem testers which must be fitted to thepipe system and disengagedtherefrom before andafter every test. The particular relationshipbetween the stopper and the clean out opening greatly facilitatestheoperation of my invention as theYelve may be extracted with little or noinconvenience.

I desire to doe understood that the forms of my invention illustrated inthe accompanying drawings and described in the above specificationmerely set forth the pre The lines are then ferred embodiments, andrealizing that conditions surrounding the reduction of my invention topractice may vary, I desire to reserve unto myself the right to makeslight changes provided such changes fall within the-scope of What isclaimed.

What I claim and desire to secure by Letters Patent is:

1. A drainage system tester of the character described consisting of atest fitting having aclear water-way and formed with an annular beveledseat therein, an annular beveled valve adapted to fit upon said seat, anannular shoulder formed upon said valve integral therewith and adjacentthe lower extremity thereof, a rubber gasket. seated.

upon said shoulder around said valve, the outer circumference of saidgasket registering with the circumference of said shoulder at the pointof contact between said shoulder and said gasket, said valve beingformedwith a concave depression in the upper face thereof, a bossformedcentrally of said concave depression, and a ring member mountedupon said boss. V

2. A drainage system tester of the character described consisting of atest fitting having' a clear water-way and formed with an annularbeveled seat therein, an annular beveled valve adapted to fit upon saidseat, an annular shoulder formed upon said valve integral therewith andadjacent the lower extremity thereof, a rubber gasket seated upon saidshoulder around said valve, the outer circumference of said gasketregistering with the circumference of said shoulder at'the point ofcontact between-said shoulder and said gasket, and a ring member mountedupon the upper face of said valve.

In testimony whereof I affiX my signature in presence of two witnesses.V

GEORGE L. KELLY;

. Witnesses r W. H. BAADER, MAXAMILLIAN GEIsSLER. v

. 7 Copies of this patent may be obtained for five cents each, byaddressing the Commissioner of Patents, 7 Washington, :0. c. r

